Results 1 to 10 of about 516 (108)
Revista Mexicana de Ciencias Geológicas, 2021 Large outcrops of jasperoids occur in the ‘Montaña de Manganeso’ mining district in north-central Mexico. They range from massive manganiferous jasperoids to highly brecciated, hematitic jasperoid. The jasperoids of ‘Montaña de Manganeso’ occur mainly as
Joseph Madondo +3 more
doaj +3 more sources
Bulletin of the Mineral Research and Exploration, 1999 Değirmenciler antimuan cevherleşmesi, Simav yöresindeki stratigrafik istifin tabanındaki biyotitli gnayslar içerisinde bulunan mermer merceklerine yerleşmiş stibnitli kuvars damarlarından oluşur. Kireçtaşının ornatımı ile ve açık boşluk dolgusu biçiminde
Vedat OYGÜR, Ayhan ERLER
doaj +1 more source
Latin American Journal of Sedimentology and Basin Analysis, 2005 En este trabajo se analiza el origen y las relaciones entre travertinos y jasperoides intercalados en rocas volcaniclásticas jurásicas en el distrito argento-aurífero Manantial Espejo, ubicado en el borde sur-occidental del Macizo del Deseado, provincia ...
Horacio Echeveste
doaj +1 more source
Journal of Economic Geology, 2023 There are important deposits such as Sari Gunay epithermal gold, Dalli porphyry copper-gold, and Zarshuran Carlin deposits with a few common exploration features in the Zagros metallogenic province of Iran. This study used geological maps, remote sensing,
Pouya Asadi Haroni +3 more
doaj +1 more source
Journal of Economic Geology, 2020 Introduction The Borujerd-Kermanshah ophiolite is a part of the ophiolite complex belonging to the Zagros Mountains and is a part of the Alpes-Himalayan belt (Alavi, 1994). The Boroujerd-Kermanshah Ophiolite complex consists of serpentinized peridotite,
Shahryar Mahmoudi +3 more
doaj +1 more source
Isotopic composition of lead from dikes and ores of the Vorontsovkoe gold deposit (Northern Urals)
Литосфера, 2020 Research subject. The Vorontsovskoe deposit belongs to gold deposits, in which gold is disseminated finely across carbonate-terrigenous rocks (Carlin-type). This study was aimed at identifying the sources of lead in various ore types (in skarn, jasperoid,
V. V. Murzin +6 more
doaj +1 more source
The non-utilitarian objects from the initial Upper Paleolithic Ushbulak site in eastern Kazakhstan
UISPP Journal, 2021 The Middle to Upper Palaeolithic transition shows numerous indications for a manifestation of abstract thinking and symbolic behavior. In northern Central Asia this process is illustrated by the appearance and distribution of personal ornaments (pendants,
Lidiya V. Zotkina +3 more
doaj +1 more source
Journal of Economic Geology, 2020 Introduction The Zarshuran gold deposit is located in the Takht-e-Soleyman complex, NW Iran. It is formed in the Iman Khan NW-trending anticline (Mehrabi et al., 1999; Samimi, 1992).
Reza Alipoor +2 more
doaj +1 more source
Application of gas analysis of jasperoid inclusion fluids to exploration for micron gold deposits [PDF]
Journal of Geochemical Exploration, 1991 Graney, J.R., Kesler, S.E. and Jones, H.D., 1991. Application of gas analysis ofjasperoid inclusion fluids to exploration for micron gold deposits. In: S.E. Kesler (Editor), Fluid Inclusion Gas Analyses in Mineral Exploration. J. Geochem. Explor., 42: 91-106.
Graney, J. R. +2 more
openaire +2 more sources
Gold mineralization of the Arctic Belt of the Russian Far East
Руды и металлыThe gold ore-bearing potential of the Early Cretaceous Arctic orogenic belt of the Far Eastern Arctic is characterized. The gold mineralization is represented by the Au-quartz vein, Au-sulfide disseminated in folded and crushed zones, Au-Bi (gold-rare ...
Goryachev N. A.
doaj +1 more source